WORMS. MOLLUSCA. 152. "EcHnus* 
14 * 
Sel>d Muf. 3. tab. \ 0 ,fig. 17. Barhut, 5 * 
ed-in. 1. 1 ,/. Guali. teji. t. I08, B, C. 
Argin'V. Loach, ^.310. t. 25, f, A« 
2. Phelf. Zec-cgel. /• 3 °> * 7 ? 
3. Muf y. t. 13,/. >, 2. 
4. Kk/- 3. t. 13./. 3. 
5. SebaMu/. 3. /■ i 3 '/- 4 - 
Inhabits Southern ''easi dcpreffed, of a yellow-alh colour indmr 
ing to brown, beneath paler. _ , , l j 
Spaces 10, the papi'la; not perforated as in the lall, but lur- 
r. unded with elevated circles; in ti e h.rper fpuce> are about 
16 — 18 protuberances, the paiddle ores larger, in the leuer 
fpaces about 14; avenues with 4 — 3 pair of pores at thebaic. 
wtsa/A large : WKt rounded and fiiirounded with 10 leaks, 5 
of which are perforated; colour of \hc/jitne> variable. 
Hemirphxrical, ova!,' with 10 fiexiicus avenues j fpecs 
muricate, the narrowt r ones longitudinal. 
Klein echtnod ed, lesk, t 4. C, D. 
Seba Muf 3 /. 10,/ 6, 16. /. 1 1, A 1 1. 
Breyn. echin. 6 . Gualt, lelt. t. loJ,f, C. 
Deiic. nat.fel. t. f. 89. /. D. i /. 8. 
1. Suborbicular. Klein lesk. r. 4,_/’ E, F- ^ 
Inhabi s the Indian Ocean, and varies much in colour ; fomctimes 
yellcw-cincrecus, loinciiir.es blueilh or blackiflii the bale 
pulvinate. 
j) cuth large: in each /pace is a double row of larger warts, and a 
fextiiple row of fmall ones in the larger Ipacc', which in the 
Jefler is quintuple; anenues with 4 — S pores towards 
the ends, and 6 in the middle. 
Hemi.fphxrical-oval and flightly deprelTed; with very fhort 
oblulc truncate fpines, the marginal ones clavatc and 
deprelTed. * 
Klein ea. lesk. t. \ 1 ,f, \ 44 ’/' 5 * 
Barliil's Worms, t.Xl. f. (s. 
Argtnvide ( onch, l.p. 310. /. 25, /. F, G. 
Inhabits ^ndian Seas. Lircumference nearly orbicular, cinereous 
inclining to violet : /paces id, very finely granulate, with 
foinetimes an octuple row of larger protuberances iu the largcp 
ones, difpoied in a quincunx, and a double row in the leflcr 
ones : avenues brown, excavated, granulate, broad, with 4, 
rows of pores ; /pines violet, fonie of them clavatc, loine an.- 
gular at the tip, and feme cylindrical. 
*Ccn-nalis. 
